transformInternal method Null safety

  1. @override
double transformInternal(
  1. double t
)
override

Returns the value of the curve at point t.

The given parametric value t will be between 0.0 and 1.0, inclusive.

Implementation

@override
double transformInternal(double t) {
  final double s = period / 4.0;
  t = 2.0 * t - 1.0;
  if (t < 0.0)
    return -0.5 * math.pow(2.0, 10.0 * t) * math.sin((t - s) * (math.pi * 2.0) / period);
  else
    return math.pow(2.0, -10.0 * t) * math.sin((t - s) * (math.pi * 2.0) / period) * 0.5 + 1.0;
}